<<you don't need much of an edge to beat the market>>
Exactly, in fact "woodie" at woodiescciclub.com used to do a coin toss session every once in a while using RUT futures. He usually made money, sometimes alot. Heads go long, tails go short. Use a 10 tick stop and a 20 tick target. It's all about money management.
". . . even small edges in the market generate consistent returns if they are consistently acted upon. This is the message of Henry's Axiom of the Small Edge: you don't need a huge edge to make good money; you need to act consistently on the edge that you have."